a lot of pressure on ryan not to screw things up now that romney has some momentum. >> i think elections are one big cake and every ingredient matters. >> that's true. >> it's to determine what specific things actually make a difference. day in and day out we talk about these things having monumental effect. it's hard to know in hindsight what matter. >> you should watch all of it right here on cnn. stay with cnn for the vice presidential debate on thursday night. our coverage begins at 7:00 p.m. >> let's get you up to date on this morning's top stories. jerry sandusky faces life behind bars when he's sentenced in just over two hours. the former penn state football coach released an audiotape from prison yesterday proclaiming his innocence. he also blamed his child sex abuse convictions on his victims and what he called a well-orchestrated conspiracy. >> the nobel prize for physics have been awarded. serge haroche and david wineland for their work in measuring and manipulating individual particles by preserve their quantum nature. >> the owner of a liquor store in california was nearly k